hi guys

i have re-sync'd my remote keys on my year 2000 astra as they didnt work however all the doors lock except the drivers door (which is the only one i ever use lol) ive gone through the process a few times to make sure i'd done it right but each time is the same result. i'm starting to think something in the drivers door is faulty. any ideas on what it could be and how hard it would be to fix, any help would be appreciated

cheers